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- We delivering products that are designed to elevate your projects to the next level. Whether you are a hardware engineer,hobbyist, student, or professional.
- Our development boards and components are here to help.
- Welcome to JESSINIE, for development boards and electronic components.
- At JESSINIE, we providing a wide range of development board modules, displays, sensors, electronics, power accessories, and DIP sockets to meet your project needs.
- At JESSINIE, We focus on the importance of reliable and efficient products, we prioritize quality and performance in everything we offer.
- Choose JESSINIE for your development board and electronic components needs.
- Thank you for choosing JESSINIE.
- Pin names and functions
- VIN: Positive pole of signal power supply, 3.3-5V
- 5V: Relay power supply positive pole, 5V
- GND: Input output negative pole, shared
- SCL: IIC clock line, high level consistent with VIN voltage
- SDA: IIC data cable, high level consistent with VIN voltage
- NC: Normally closed end of relay
- COM: Relay common terminal
- NO: Relay always starts
- J1 Jumper: Insert the jumper cap and short circuit the signal power and relay power,
- disconnect the jumper cap and disconnect the signal power and relay power
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